High-Precision 4-Line Internal Resistance Tester by Peacefair

Ultra-Accurate Measurements
4-wire Kelvin clip design eliminates lead resistance interference, ensuring lab-grade precision (0.1% accuracy) for batteries, PCBs, and electronic components.
Premium Build & Convenience
CNC-machined copper alloy clips with gold-plated contacts resist corrosion. Integrated USB power and compact internal lithium battery support on-the-go testing.
Engineered for Professionals
Ideal for lithium battery QC, EV maintenance, and circuit debugging. Auto-ranging (0.01Ω–3kΩ) and backlit LCD simplify complex diagnostics.
Bulk-Optimized Value
Direct factory pricing for wholesalers—scalable inventory with unmatched cost efficiency.